diff --git a/developer/src/kmc-convert/src/keylayout-to-kmn/keylayout-to-kmn-converter.ts b/developer/src/kmc-convert/src/keylayout-to-kmn/keylayout-to-kmn-converter.ts
index dbf9e593fe..641a5e7ab5 100644
--- a/developer/src/kmc-convert/src/keylayout-to-kmn/keylayout-to-kmn-converter.ts
+++ b/developer/src/kmc-convert/src/keylayout-to-kmn/keylayout-to-kmn-converter.ts
@@ -140,7 +140,7 @@ export class KeylayoutToKmnConverter {
     const outputKmn = kmnFileWriter.write(processedData);
     const result: ConverterToKmnResult = {
       artifacts: {
-        kmn: { data: outputKmn, filename: processedData?.kmnFilename ?? '' }
+        kmn: { data: outputKmn, filename: processedData?.kmnFilename ?? 'noFileName' }
       }
     };
     return result;